Non-GMO Vitamin C 1000 mg, 240 Tablets, Source NaturalsSource Naturals Non GMO Vitamin C provides all of vitamin C's health benefits, including support for the immune system, collagen formation, hormone production, and iron utilization. While much of the vitamin C on the market is derived from genetically modified ingredients, Source Naturals carefully scrutinizes its sources of vitamin C to ensure it is obtained from only non genetically modified materials. Supplement Facts Serving Size: 1 Tablet Amount